Magnetic properties of LaMnO3+δ nanocrystals in MCM-41 mesoporous silica

H. Kira; H. Tamura; Y. Ando; M. Onodera; H. Nakao; Y. Murakami; K. Tsuda; K. Ohoyama; S. Yamazaki; T. Tajiri; H. Deguchi

doi:10.1016/j.jmmm.2006.11.021

Magnetic properties of LaMnO_3+δ nanocrystals in MCM-41 mesoporous silica

H. Kira, H. Tamura, Y. Ando, M. Onodera, H. Nakao, Y. Murakami, K. Tsuda, K. Ohoyama, S. Yamazaki, T. Tajiri, H. Deguchi

Advanced Interdisciplinary Research Division

Research output: Contribution to journal › Article › peer-review

2 Citations (Scopus)

Abstract

The LaMnO_3+δ crystal has successfully been synthesized in a mesoporous silica MCM-41 by an improvement in the impregnation method. X-ray diffraction measurement has revealed that the crystal has a rhombohedral structure and the average particle size is about 9.5 nm. Ferromagnetic behavior with a hysteresis of the magnetization curve was observed below T=280 K; however, the magnetization is not saturated up to H=7 T at T=5 K. These results suggest that ferromagnetic and antiferromagnetic regions coexist in the sample.

Original language	English
Pages (from-to)	2480-2482
Number of pages	3
Journal	Journal of Magnetism and Magnetic Materials
Volume	310
Issue number	2 SUPPL. PART 3
DOIs	https://doi.org/10.1016/j.jmmm.2006.11.021
Publication status	Published - 2007 Mar

Keywords

Lanthanum manganite
Magnetic property
Nanocrystal
X-ray diffraction

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics

Access to Document

10.1016/j.jmmm.2006.11.021

Cite this

@article{3f14f82670c44fd48e44cd3c4dde8bf7,

title = "Magnetic properties of LaMnO3+δ nanocrystals in MCM-41 mesoporous silica",

abstract = "The LaMnO3+δ crystal has successfully been synthesized in a mesoporous silica MCM-41 by an improvement in the impregnation method. X-ray diffraction measurement has revealed that the crystal has a rhombohedral structure and the average particle size is about 9.5 nm. Ferromagnetic behavior with a hysteresis of the magnetization curve was observed below T=280 K; however, the magnetization is not saturated up to H=7 T at T=5 K. These results suggest that ferromagnetic and antiferromagnetic regions coexist in the sample.",

keywords = "Lanthanum manganite, Magnetic property, Nanocrystal, X-ray diffraction",

author = "H. Kira and H. Tamura and Y. Ando and M. Onodera and H. Nakao and Y. Murakami and K. Tsuda and K. Ohoyama and S. Yamazaki and T. Tajiri and H. Deguchi",

note = "Funding Information: This work was supported in part by the Grant-in-Aid for the 21st Century Center of Excellence Program from the Ministry of Education, Culture, Sports, Science and Technology, Japan.",

year = "2007",

month = mar,

doi = "10.1016/j.jmmm.2006.11.021",

language = "English",

volume = "310",

pages = "2480--2482",

journal = "Journal of Magnetism and Magnetic Materials",

issn = "0304-8853",

publisher = "Elsevier",

number = "2 SUPPL. PART 3",

}

TY - JOUR

T1 - Magnetic properties of LaMnO3+δ nanocrystals in MCM-41 mesoporous silica

AU - Kira, H.

AU - Tamura, H.

AU - Ando, Y.

AU - Onodera, M.

AU - Nakao, H.

AU - Murakami, Y.

AU - Tsuda, K.

AU - Ohoyama, K.

AU - Yamazaki, S.

AU - Tajiri, T.

AU - Deguchi, H.

N1 - Funding Information: This work was supported in part by the Grant-in-Aid for the 21st Century Center of Excellence Program from the Ministry of Education, Culture, Sports, Science and Technology, Japan.

PY - 2007/3

Y1 - 2007/3

N2 - The LaMnO3+δ crystal has successfully been synthesized in a mesoporous silica MCM-41 by an improvement in the impregnation method. X-ray diffraction measurement has revealed that the crystal has a rhombohedral structure and the average particle size is about 9.5 nm. Ferromagnetic behavior with a hysteresis of the magnetization curve was observed below T=280 K; however, the magnetization is not saturated up to H=7 T at T=5 K. These results suggest that ferromagnetic and antiferromagnetic regions coexist in the sample.

AB - The LaMnO3+δ crystal has successfully been synthesized in a mesoporous silica MCM-41 by an improvement in the impregnation method. X-ray diffraction measurement has revealed that the crystal has a rhombohedral structure and the average particle size is about 9.5 nm. Ferromagnetic behavior with a hysteresis of the magnetization curve was observed below T=280 K; however, the magnetization is not saturated up to H=7 T at T=5 K. These results suggest that ferromagnetic and antiferromagnetic regions coexist in the sample.

KW - Lanthanum manganite

KW - Magnetic property

KW - Nanocrystal

KW - X-ray diffraction

UR - http://www.scopus.com/inward/record.url?scp=33847673650&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=33847673650&partnerID=8YFLogxK

U2 - 10.1016/j.jmmm.2006.11.021

DO - 10.1016/j.jmmm.2006.11.021

M3 - Article

AN - SCOPUS:33847673650

VL - 310

SP - 2480

EP - 2482

JO - Journal of Magnetism and Magnetic Materials

JF - Journal of Magnetism and Magnetic Materials

SN - 0304-8853

IS - 2 SUPPL. PART 3

ER -